/Engine/Source/Runtime/Datasmith/CADKernel/Public/CADKernel/Geo/Sampling/PolylineTools.h
Project a Set of points on a restricted polyline (StartIndex & EndIndex define the polyline boundary) Each points are projected on all segments of the restricted polyline, the closest are selected
void ProjectPointsToPolyline ( const [FLinearBoundary](API\Runtime\CADKernel\CADKernel\Math\FLinearBoundary) & InBoundary, const [TArray](API\Runtime\Core\Containers\TArray)< PointType > & InPointsToProject, [TArray](API\Runtime\Core\Containers\TArray)< double > & OutProjectedPointCoords, [TArray](API\Runtime\Core\Containers\TArray)< PointType > & OutProjectedPoints ) const